Heat treatment of hatching eggs

[call ducks]

I remember a few months ago there was this topic on pre heating hatching eggs before incubating (i assume to help with fetilty and such) well this years experiment is testing this theory. These eggs well be stored for 3 more days ( time it would take to ship eggs)

Here is what is going on:

Pre incubated: (incubated for 3 hours then cooled)

Date Time Incubator temp Pre incubated Non preincubated What happened
Jan 18th 15:50 99.9 Eight eggs set in
Jan 18th 18:54 99.8 Eight eggs taken out and put in the fridge to cool
Jan 18th 19:31 Removed eggs and not cold ennoufh
Jan 18th 19:57 Eggs removed from fridge and placed in plastic storage flats.

Control: (well be set in about a week)


So do you peeps have any questions? ideas etc.?

 

[jenjscott]

Well, I guess I missed the previous thread. What is the purpose or supposed advantage to this? Trying to see if this will improve hatch rate in shipped eggs?

 

[call ducks]

In a way; from what i have read this should increase the the length they are fertile for. But i well see

the eggs went in yesterday.

 

[GreenGoddess]

I believe the thread you are talking about is incubating before shipping.. In that case, they were talking about incubating for 3 days (not hours) and then trying to ship them to see if this would increase or decrease hatchability... Setting an egg into the incubator for 3 hours would not be long enough to even warm the center of the egg to the correct temp for incubation and therefor would not alter the effects....

eta: Here is the thread... https://www.backyardchickens.com/forum/viewtopic.php?id=419802&p=1

Goddess

 

[Dipsy Doodle Doo]

Hi! There is another school of thought regarding 'heat treating' eggs for hours instead of days, but I honestly don't understand it.
This is different from 'pre-incubating'.
Good luck with the experiment and keep us posted on how it goes.

Lisa

 

[call ducks]

Quote:
It's not to warm it but develop the cells far enough.

Ohh and 3 days would be far to long. The cooling period could kill the embryo. the first week is when the embryos can be damaged the most ( i have talked to a hatchery owner in my area, not about this topic but he said the first week is when most damage can happen)

 

[call ducks]

Quote:
Hey there, Lisa don't know what ya mean by

This is different from 'pre-incubating'.

sorry it's morning and i was sick last night.​

 

[Dipsy Doodle Doo]

Hi! Hope you are feeling better.
This is the thread about 'pre-incubating': https://www.backyardchickens.com/forum/viewtopic.php?id=419802
Good luck!

Lisa

 

[call ducks]

ahh yes. Heat treatment is a bit different then pre-incubation. Pre-incubation is just that developing the embryo for 3 days. Where heat treatment just's warms the egg(s) to develop the cells just enough to keep fertility good for more then a few day's